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Visual Materials

Big Creek, Huntington Lake Dams - Portal Powerhouse

Description: Big Creek, Huntington Lake Dams - Portal Powerhouse - Construction progress of powerhouse structure.
Type: Visual Materials(Opens in new tab)
Date: 9/30/1955
Call number: photCL SCE 02 - 43753
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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Big Creek, Huntington Lake Dams - Portal Powerhouse
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Big Creek, Huntington Lake Dams - Portal Powerhouse - Progress of powerhouse structure. Forming for back wall and penstock bend anchor at powerhouse.
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Big Creek, Huntington Lake Dams - Portal Forebay
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Big Creek, Huntington Lake Dams - Portal Forebay - Progress in intake channel. Drilling for rock excavation approx. 5' above grade.
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Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Rancheria Creek at its confluence with leakage water from construction activities at Portal Powerhouse. Estimated flow about 1 cfs.
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Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Rancheria Creek near Portal Powerhouse, showing temporary road crossing, which also dams the flow of the creek.
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Big Creek, Huntington Lake Dams - Portal Forebay
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Big Creek, Huntington Lake Dams - Portal Forebay - upper part of open cut intake channel and portal face of short section of tunnel before first round was shot.
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Big Creek, Huntington Lake Dams - Progress of backfills on Huntington Lake Dams by Stone & Webster Co
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Big Creek, Huntington Lake Dams - Progress of backfills on Huntington Lake Dams by Stone & Webster Co. - Downstream view of auxiliary spillway structure.
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